Select the correct direct form of the given sentence.
The teacher asked the students if they could prepare for the debate by the following week.

A

The teacher said to the students, “Can you prepare for the debate by next week?”

B

The teacher asked to the students, “Could you prepare for the debate by the following week?”

C

The teacher said to the students, “Are you prepared for the debate by next week?”

D

The teacher said to the students, “Will you prepare for the debate by the following week?”